Revert "Remove unnecessary check for parameter ...mod::jk::logroot"
Revert "Remove unnecessary check for parameter ...mod::jk::logroot"

This reverts commit cea6bbfa64f4a78bf6253ac45503b5f6374a2cbd.

Setting default value from other class (::apache) breaks spec test,
which does not parse the other class

puppetlabs/puppetlabs-apache,eputnam/puppetlabs-apache,eputnam/puppetlabs-apache,traylenator/puppetlabs-apache,traylenator/puppetlabs-apache,yakatz/puppetlabs-apache,puppetlabs/puppetlabs-apache,yakatz/puppetlabs-apache